Derivative of Sine by Heather Pierce

This example demonstrates the geometric meaning of the derivative (slope of the tangent line) of the sine function at any point. Core math concepts include derivatives, sine function, cosine function, tangent slope, and geometric transformations. Construction highlights the use of Tangent and Slope commands, along with objects like f (function), a (variable), A (tangent point), g (derivative function), b (derivative value), text1 (text annotation), button1 (button control), and h (auxiliary line). Suitable for high school calculus instruction to visually understand the definition and geometric significance of derivatives.